We're not geeky about tires, and tend to like ones that don't flat and aren't too skinny. Even Mark here, our raciest resident, rides the 33.333mm Jack Browns on his fast road rides. If it were up to me/Grant, we'd have a much smaller selection than we have, but two things: (1) At any given time our suppliers may be out of a favorite, so we need an equivalent backup; and (2) the millennials here tend to experiment with lots of different tires, and have opinions worth acting on. Nobody here is a fan of skinny tires or featherweight, flat-prone ones.